Note: The example drawings in this section are simplified.
They are meant to illustrate connections to the HeatNet V3
control. Only major components are illustrated. The system
engineer must ensure additional safeties, piping,
maintenance valves, and components meet code
requirements and safe operation.
Mixed Boiler System Examples
For the examples, the RBI FIII/Fusion series water heaters
will be used. These boilers are non-Condensing, fully
modulating, low mass, and HeatNet compatible.
If CB/CW Fusion boilers are substituted for the MB/MW
Futera III boilers, the efficiency is greatly increased due to
the condensing mode of these boilers. When using CB/CW
Fusion boilers, at lower firing rates, the combustion
efficiency is maximized by running the CB/CW Fusion
boilers from low to middle input rates. See: Typical
Efficiency of Condensing Boiler graph.
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